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91.
92.
This research examines the influence of commercialization on support for scientific research. It compares the effects of the funding source with the type of organization on public support for stem cell research. Using a national Australian telephone survey (n = 1000), the results reveal that support drops significantly when scientific research is funded by private rather than public interests, and even more so when it is conducted in a private company rather than a public university. Respondents' preference for university research was enhanced if they trusted universities, distrusted major companies and believed that the research would be beneficial. A preference for public funding was also associated with lower trust in companies and a belief that the research would benefit people. Implications of these results are discussed in relation to the challenge of maintaining public support in an increasingly commercialized research environment.  相似文献   
93.
This article describes the work of Project ImpactCS, which was initiated to define the core content and pedagogical objectives for integrating social impact and ethics into the computer science (CS) curriculum. Over a three year period the project will address three major problems that hamper the implementation of across-the-board curriculum change: the lack of a well-specified definition of what the core content and learning objectives should include, the lack of a strategy for adapting and adopting existing materials that address the core topics into the existing CS curriculum, and the lack of awareness and expertise on the part of most CS faculties regarding the need and methodology for presenting such material in their courses. This report provides the conceptual frame-work and describes the learning objectives, called knowledge units, for defining a new content area in the computer science curriculum. It also discusses strategies and innovative pedagogical techniques for implementing the knowledge units into the curriculum.  相似文献   
94.
Historical fiction, fiction about contemporary people of other cultures, and nonfiction trade books can increase children's interest in social studies and enhance their knowledge. Dianne Monson and Kathleen Howe discuss the ways that these books appeal to young readers and lead them to seek further understanding of historical events, foreign cultures, and Americans from different cultural backgrounds. They offer numerous examples of books that serve this purpose for several social studies topics. Kathleen Howe completed her doctorate at the University of Minnesota. Her dissertation dealt with the use of children's literature trade books in the elementary social studies curriculum. Dianne Monson is a past president of the U.S. Board on Books for Young People and has written and lectured on children's literature throughout the curriculum.  相似文献   
95.
Ronald Gottesman and Harry Geduld (eds.) Guidebook to Film: An Eleven-in-One Reference (New York: Holt, Rinehart &; Winston, 1972 – ,$6.95/3.95)

C. Edward Wall (ed.) Multi Media Reviews Index: 1970 (Ann Arbor, Mich.: Pierian Press, 1971 – $19.50)

Dorothy I. Weil's (ed.) The American Film Institute's Guide to College Film Courses 1971-72 (Chicago: American Library Association, 1972 – $3.50, paper)

Raymond Fielding's The Technique of Special Effects Cinematography (New York: Hastings House, 1972 – $18.50)  相似文献   
96.
Natural selection as a mechanism of evolution is a central concept in biology; yet, most nonbiology‐majors do not thoroughly understand the theory even after instruction. Many alternative conceptions on this topic have been identified, indicating that the job of the instructor is a difficult one. This article presents a new diagnostic test to assess students' understanding of natural selection. The test items are based on actual scientific studies of natural selection, whereas previous tests have employed hypothetical situations that were often misleading or oversimplified. The Conceptual Inventory of Natural Selection (CINS) is a 20‐item multiple choice test that employs common alternative conceptions as distractors. An original 12‐item version of the test was field‐tested with 170 nonmajors in 6 classes and 43 biology majors in 1 class at 3 community colleges. The test scores of one subset of nonmajors (n = 7) were compared with the students' performances in semistructured interviews. There was a positive correlation between the test scores and the interview scores. The current 20‐item version of the CINS was field‐tested with 206 students in a nonmajors' general biology course. The face validity, internal validity, reliability, and readability of the CINS are discussed. Results indicate that the CINS will be a valuable tool for instructors. © 2002 Wiley Periodicals, Inc. J Res Sci Teach 39: 952–978, 2002  相似文献   
97.
When students self-regulate studying, they monitor achievement and study tactics. Proximal input to monitoring is perceptions that the student constructs based on experience. Productive self-regulation theoretically requires strong correspondence between (a) perceptions of achievement and actual achievement and (b) perceived use of study tactics and actual use of study tactics. That is, calibration should be high. Students studied using a software tool that traced study tactics they used. Subsequently their self-reports about study tactics and estimates of achievement were gathered, and a test was administered. Students were slightly positively biased (overconfident) about their achievement and moderately positively biased about (overestimated) their use of study tactics. An individual difference measure of calibration was very high for achievement but modest for study tactics. It is explained why calibration of self-reports about study tactics did not predict achievement, examine theoretical links between calibration and other prominent constructs, and discuss issues of self-regulated learning.  相似文献   
98.
Recent research on online learning has explored the dense fabric of social presence giving us a better understanding of the rhythms of the teaching-learning exchange. Quantitative studies, especially, have concluded with calls for deeper, more intensive explorations into what happens in online learning environments (Rourke, Anderson, Garrison, & Archer, Journal of Distance Education, 14 (2), 50-71, 1999 ). In this paper, the results of an interpretive study conducted among mature university learners engaged in online study reveal learners' strong affinity to a code of online etiquette. On the demanding front lines of online learning, these learners valued and constructed ways of "being nice" to their fellow learners, creating tolerable levels of harmony and community within which to complete their studies successfully.  相似文献   
99.
Few would dispute the efficacy of multimedia technology and the world wide web in promoting declarative knowledge or the acquisition of facts. It is the argument of this paper however that, apart from assisting a learner in "knowing that", these technologies are underestimated in their capacity to facilitate intellectual skills—procedural knowledge or "knowing how". Via examples from children employing information handling skills with a CD-ROM, this paper attempts to illustrate the ways in which new technologies support and enhance a range of skills associated with deep level processing and meaningful learning such as metacognition, problem solving and critical thinking.  相似文献   
100.
Information retrieval systems consist of many complicated components. Research and development of such systems is often hampered by the difficulty in evaluating how each particular component would behave across multiple systems. We present a novel integrated information retrieval system—the Query, Cluster, Summarize (QCS) system—which is portable, modular, and permits experimentation with different instantiations of each of the constituent text analysis components. Most importantly, the combination of the three types of methods in the QCS design improves retrievals by providing users more focused information organized by topic.We demonstrate the improved performance by a series of experiments using standard test sets from the Document Understanding Conferences (DUC) as measured by the best known automatic metric for summarization system evaluation, ROUGE. Although the DUC data and evaluations were originally designed to test multidocument summarization, we developed a framework to extend it to the task of evaluation for each of the three components: query, clustering, and summarization. Under this framework, we then demonstrate that the QCS system (end-to-end) achieves performance as good as or better than the best summarization engines.Given a query, QCS retrieves relevant documents, separates the retrieved documents into topic clusters, and creates a single summary for each cluster. In the current implementation, Latent Semantic Indexing is used for retrieval, generalized spherical k-means is used for the document clustering, and a method coupling sentence “trimming” and a hidden Markov model, followed by a pivoted QR decomposition, is used to create a single extract summary for each cluster. The user interface is designed to provide access to detailed information in a compact and useful format.Our system demonstrates the feasibility of assembling an effective IR system from existing software libraries, the usefulness of the modularity of the design, and the value of this particular combination of modules.  相似文献   
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